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Unemployment Claims Jump 25,000

April 28, 2011 weekly update

The Unemployment Insurance Weekly Claims Report was released this morning for last week. Claims rose 25,000 from an upward revision of the previous week to 429,000. The 4-week moving average increased by 2.3%. Here is the official statement from the Department of Labor:

In the week ending April 23, the advance figure for seasonally adjusted initial claims was 429,000, an increase of 25,000 from the previous week’s revised figure of 404,000. The 4-week moving average was 408,500, an increase of 9,250 from the previous week’s revised average of 399,250.

The advance seasonally adjusted insured unemployment rate was 2.9 percent for the week ending April 16, a decrease of 0.1 percentage point from the prior week’s revised rate of 3.0 percent.

The advance number for seasonally adjusted insured unemployment during the week ending April 16 was 3,641,000, a decrease of 68,000 from the preceding week’s revised level of 3,709,000. The 4-week moving average was 3,697,750, a decrease of 22,750 from the preceding week’s revised average of 3,720,500.

Today’s number was 10% above the Briefing.com consensus estimate of 390,000 claims.

As we can see, there’s a good bit of volatility in this indicator, which is why the 4-week moving average (shown in the callouts) is a more useful number than the weekly data.

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Occasionally I see articles critical of seasonal adjustment, especially when the non-adjusted number better suits the author’s bias. But a comparison of these two charts clearly shows extreme volatility of the non-adjusted data, and the 4-week MA gives an indication of the recurring pattern of seasonal change in the second chart (note, for example, those regular January spikes).

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Because of the extreme volatility of the non-adjusted weekly data, a 52-week moving average gives a better sense of the long-term trends.

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The Bureau of Labor Statistics provides an overview on seasonal adjustment here (scroll down about half way down). For more specific insight into the adjustment method, check out the BLS Seasonal Adjustment Files and Documentation.

For a broader view of unemployment, see the latest update in my monthly series Unemployment and the Market Since 1948.

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